Radeon HD 6870 and Quadro M620 - video card comparison
Passmark - benchmark score Radeon HD 6870 vs Quadro M620
Radeon HD 6870
2285
Quadro M620
2882
Radeon HD 6870
Quadro M620
Architecture
Terascale 2 (2009−2015)
Maxwell (2014−2018)
GPU code name
RV940 Barts
GM107
Market segment
Desktop
Mobile workstation
Release date
October 2010
January 2017
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
MXM-A (3.0)
Supplementary power connectors
2x 6-pin
None
Boost clock speed
900 MHz
977 MHz
Core clock speed
-
1018 MHz
Floating-point performance
2,016.0 gflops
-
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,700 million
1,870 million
Pipelines / CUDA cores
1120
512
Power consumption (TDP)
151 Watt
30 Watt
Texture fill rate
50.40
31.26
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
5012 MHz
Memory bandwidth
134.4 GB/s
80 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Display Port
-
1.2
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
12
CUDA
-
5.0
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.5
Shader Model
5.0
5.0
Vulkan
-
1.1.126
3D Stereo
-
+
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
Mosaic
-
+
nView Display Management
-
+
Optimus
-
+
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-